And like how they both started using the code names, that phrase is enough to settle fully into infiltration mode. Into Joker's skin, where anything is permitted. The animal now clawing at his soul really is just Arsene in a new disguise, using Akira's own voice to state his deepest desires.

'Run wild to your heart's content!'

And he does, bolting into the trees. If Akechi thinks he can keep up he's certainly free to try.